Backend API
import React, { useCallback, useState } from 'react';
import SelectBox, { type SelectBoxTypes } from 'devextreme-react/select-box';
import PieChart, {
Series,
Label,
Margin,
Export,
Legend,
Animation,
IPieChartOptions,
} from 'devextreme-react/pie-chart';
import { dataSource, resolutionModeLabel } from './data.ts';
const resolveModes: (IPieChartOptions['resolveLabelOverlapping'])[] = ['shift', 'hide', 'none'];
function formatText(arg: { argumentText: string; percentText: string; }) {
return `${arg.argumentText} (${arg.percentText})`;
}
function App() {
const [resolveMode, setResolveMode] = useState(resolveModes[0]);
const handleResolveModeChange = useCallback((data: SelectBoxTypes.ValueChangedEvent) => {
setResolveMode(data.value);
}, [setResolveMode]);
return (
<React.Fragment>
<PieChart
id="pie"
dataSource={dataSource}
palette="Bright"
title="Olympic Medals in 2008"
resolveLabelOverlapping={resolveMode}
>
<Series
argumentField="country"
valueField="medals"
>
<Label visible={true} customizeText={formatText} />
</Series>
<Margin bottom={20} />
<Export enabled={true} />
<Legend visible={false} />
<Animation enabled={false} />
</PieChart>
<div className="options">
<div className="caption">Options</div>
<div className="option">
<span>Label Overlapping Resolution Mode </span>
<SelectBox
dataSource={resolveModes}
inputAttr={resolutionModeLabel}
value={resolveMode}
onValueChanged={handleResolveModeChange}
/>
</div>
</div>
</React.Fragment>
);
}
export default App;
import React, { useCallback, useState } from 'react';
import SelectBox from 'devextreme-react/select-box';
import PieChart, {
Series,
Label,
Margin,
Export,
Legend,
Animation,
} from 'devextreme-react/pie-chart';
import { dataSource, resolutionModeLabel } from './data.js';
const resolveModes = ['shift', 'hide', 'none'];
function formatText(arg) {
return `${arg.argumentText} (${arg.percentText})`;
}
function App() {
const [resolveMode, setResolveMode] = useState(resolveModes[0]);
const handleResolveModeChange = useCallback(
(data) => {
setResolveMode(data.value);
},
[setResolveMode],
);
return (
<React.Fragment>
<PieChart
id="pie"
dataSource={dataSource}
palette="Bright"
title="Olympic Medals in 2008"
resolveLabelOverlapping={resolveMode}
>
<Series
argumentField="country"
valueField="medals"
>
<Label
visible={true}
customizeText={formatText}
/>
</Series>
<Margin bottom={20} />
<Export enabled={true} />
<Legend visible={false} />
<Animation enabled={false} />
</PieChart>
<div className="options">
<div className="caption">Options</div>
<div className="option">
<span>Label Overlapping Resolution Mode </span>
<SelectBox
dataSource={resolveModes}
inputAttr={resolutionModeLabel}
value={resolveMode}
onValueChanged={handleResolveModeChange}
/>
</div>
</div>
</React.Fragment>
);
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
export const dataSource = [{
country: 'USA',
medals: 112,
}, {
country: 'China',
medals: 100,
}, {
country: 'Russia',
medals: 60,
}, {
country: 'Britain',
medals: 49,
}, {
country: 'Australia',
medals: 46,
}, {
country: 'France',
medals: 43,
}, {
country: 'Germany',
medals: 41,
}, {
country: 'South Korea',
medals: 32,
}, {
country: 'Cuba',
medals: 29,
}, {
country: 'Italy',
medals: 27,
}, {
country: 'Japan',
medals: 25,
}, {
country: 'Ukraine',
medals: 22,
}, {
country: 'Canada',
medals: 20,
}, {
country: 'Spain',
medals: 19,
}];
export const resolutionModeLabel = { 'aria-label': 'Resolution Mode' };
window.exports = window.exports || {};
window.config = {
transpiler: 'ts',
typescriptOptions: {
module: 'system',
emitDecoratorMetadata: true,
experimentalDecorators: true,
jsx: 'react',
},
meta: {
'react': {
'esModule': true,
},
'typescript': {
'exports': 'ts',
},
'devextreme/time_zone_utils.js': {
'esModule': true,
},
'devextreme/localization.js': {
'esModule': true,
},
'devextreme/viz/palette.js': {
'esModule': true,
},
'openai': {
'esModule': true,
},
},
paths: {
'npm:': 'https://cdn.jsdelivr.net/npm/',
'bundles:': '../../../../bundles/',
'externals:': '../../../../bundles/externals/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'react': 'npm:react@17.0.2/umd/react.development.js',
'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
'prop-types': 'npm:prop-types/prop-types.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign',
'devextreme': 'npm:devextreme@25.1.5/cjs',
'devextreme-react': 'npm:devextreme-react@25.1.5/cjs',
'devextreme-quill': 'npm:devextreme-quill@1.7.4/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.21/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.64/dist/dx-gantt.js',
'inferno': 'npm:inferno@8.2.3/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@8.2.3/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
'@preact/signals-core': 'npm:@preact/signals-core@1.8.0/dist/signals-core.min.js',
'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
},
packages: {
'devextreme': {
defaultExtension: 'js',
},
'devextreme-react': {
main: 'index.js',
},
'devextreme-react/common': {
main: 'index.js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/common/core/events/utils': {
main: 'index',
},
'devextreme/localization/messages': {
format: 'json',
defaultExtension: 'json',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
// eslint-disable-next-line
const useTgzInCSB = ['openai'];
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
export const dataSource = [
{
country: 'USA',
medals: 112,
},
{
country: 'China',
medals: 100,
},
{
country: 'Russia',
medals: 60,
},
{
country: 'Britain',
medals: 49,
},
{
country: 'Australia',
medals: 46,
},
{
country: 'France',
medals: 43,
},
{
country: 'Germany',
medals: 41,
},
{
country: 'South Korea',
medals: 32,
},
{
country: 'Cuba',
medals: 29,
},
{
country: 'Italy',
medals: 27,
},
{
country: 'Japan',
medals: 25,
},
{
country: 'Ukraine',
medals: 22,
},
{
country: 'Canada',
medals: 20,
},
{
country: 'Spain',
medals: 19,
},
];
export const resolutionModeLabel = { 'aria-label': 'Resolution Mode' };
<!DOCTYPE html>
<html lang="en">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/25.1.5/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import("./index.tsx");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
.options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
margin-top: 20px;
}
.option {
margin-top: 10px;
display: flex;
align-items: center;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option > span {
margin-right: 10px;
}
.option > .dx-widget {
display: inline-block;
vertical-align: middle;
}